mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-11-01 00:11:00 +00:00
c2dfb8bb90
code. Patch contributed by Vladimir Prus. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14280 91177308-0d34-0410-b5e6-96231b3b80d8
632 lines
23 KiB
C++
632 lines
23 KiB
C++
//===-- llvm/Constants.h - Constant class subclass definitions --*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file was developed by the LLVM research group and is distributed under
|
|
// the University of Illinois Open Source License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file contains the declarations for the subclasses of Constant, which
|
|
// represent the different type of constant pool values
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_CONSTANTS_H
|
|
#define LLVM_CONSTANTS_H
|
|
|
|
#include "llvm/Constant.h"
|
|
#include "Support/DataTypes.h"
|
|
|
|
namespace llvm {
|
|
|
|
class ArrayType;
|
|
class StructType;
|
|
class PointerType;
|
|
|
|
template<class ConstantClass, class TypeClass, class ValType>
|
|
struct ConstantCreator;
|
|
template<class ConstantClass, class TypeClass>
|
|
struct ConvertConstantType;
|
|
|
|
|
|
//===---------------------------------------------------------------------------
|
|
/// ConstantIntegral - Shared superclass of boolean and integer constants.
|
|
///
|
|
/// This class just defines some common interfaces to be implemented.
|
|
///
|
|
class ConstantIntegral : public Constant {
|
|
protected:
|
|
union {
|
|
int64_t Signed;
|
|
uint64_t Unsigned;
|
|
} Val;
|
|
ConstantIntegral(const Type *Ty, uint64_t V);
|
|
public:
|
|
|
|
/// getRawValue - return the underlying value of this constant as a 64-bit
|
|
/// unsigned integer value.
|
|
///
|
|
inline uint64_t getRawValue() const { return Val.Unsigned; }
|
|
|
|
/// isNullValue - Return true if this is the value that would be returned by
|
|
/// getNullValue.
|
|
///
|
|
virtual bool isNullValue() const = 0;
|
|
|
|
/// isMaxValue - Return true if this is the largest value that may be
|
|
/// represented by this type.
|
|
///
|
|
virtual bool isMaxValue() const = 0;
|
|
|
|
/// isMinValue - Return true if this is the smallest value that may be
|
|
/// represented by this type.
|
|
///
|
|
virtual bool isMinValue() const = 0;
|
|
|
|
/// isAllOnesValue - Return true if every bit in this constant is set to true.
|
|
///
|
|
virtual bool isAllOnesValue() const = 0;
|
|
|
|
/// Static constructor to get the maximum/minimum/allones constant of
|
|
/// specified (integral) type...
|
|
///
|
|
static ConstantIntegral *getMaxValue(const Type *Ty);
|
|
static ConstantIntegral *getMinValue(const Type *Ty);
|
|
static ConstantIntegral *getAllOnesValue(const Type *Ty);
|
|
|
|
/// Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
static inline bool classof(const ConstantIntegral *) { return true; }
|
|
static bool classof(const Constant *CPV); // defined in Constants.cpp
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Constant>(V) && classof(cast<Constant>(V));
|
|
}
|
|
};
|
|
|
|
|
|
//===---------------------------------------------------------------------------
|
|
/// ConstantBool - Boolean Values
|
|
///
|
|
class ConstantBool : public ConstantIntegral {
|
|
ConstantBool(bool V);
|
|
public:
|
|
static ConstantBool *True, *False; // The True & False values
|
|
|
|
/// get() - Static factory methods - Return objects of the specified value
|
|
static ConstantBool *get(bool Value) { return Value ? True : False; }
|
|
static ConstantBool *get(const Type *Ty, bool Value) { return get(Value); }
|
|
|
|
/// inverted - Return the opposite value of the current value.
|
|
inline ConstantBool *inverted() const { return (this==True) ? False : True; }
|
|
|
|
/// getValue - return the boolean value of this constant.
|
|
///
|
|
inline bool getValue() const { return static_cast<bool>(getRawValue()); }
|
|
|
|
/// isNullValue - Return true if this is the value that would be returned by
|
|
/// getNullValue.
|
|
///
|
|
virtual bool isNullValue() const { return this == False; }
|
|
virtual bool isMaxValue() const { return this == True; }
|
|
virtual bool isMinValue() const { return this == False; }
|
|
virtual bool isAllOnesValue() const { return this == True; }
|
|
|
|
/// Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
static inline bool classof(const ConstantBool *) { return true; }
|
|
static bool classof(const Constant *CPV) {
|
|
return (CPV == True) | (CPV == False);
|
|
}
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Constant>(V) && classof(cast<Constant>(V));
|
|
}
|
|
};
|
|
|
|
|
|
//===---------------------------------------------------------------------------
|
|
/// ConstantInt - Superclass of ConstantSInt & ConstantUInt, to make dealing
|
|
/// with integral constants easier.
|
|
///
|
|
class ConstantInt : public ConstantIntegral {
|
|
protected:
|
|
ConstantInt(const ConstantInt &); // DO NOT IMPLEMENT
|
|
ConstantInt(const Type *Ty, uint64_t V);
|
|
public:
|
|
/// equalsInt - Provide a helper method that can be used to determine if the
|
|
/// constant contained within is equal to a constant. This only works for
|
|
/// very small values, because this is all that can be represented with all
|
|
/// types.
|
|
///
|
|
bool equalsInt(unsigned char V) const {
|
|
assert(V <= 127 &&
|
|
"equals: Can only be used with very small positive constants!");
|
|
return Val.Unsigned == V;
|
|
}
|
|
|
|
/// ConstantInt::get static method: return a ConstantInt with the specified
|
|
/// value. as above, we work only with very small values here.
|
|
///
|
|
static ConstantInt *get(const Type *Ty, unsigned char V);
|
|
|
|
/// isNullValue - Return true if this is the value that would be returned by
|
|
/// getNullValue.
|
|
virtual bool isNullValue() const { return Val.Unsigned == 0; }
|
|
virtual bool isMaxValue() const = 0;
|
|
virtual bool isMinValue() const = 0;
|
|
|
|
/// Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
static inline bool classof(const ConstantInt *) { return true; }
|
|
static bool classof(const Constant *CPV); // defined in Constants.cpp
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Constant>(V) && classof(cast<Constant>(V));
|
|
}
|
|
};
|
|
|
|
|
|
//===---------------------------------------------------------------------------
|
|
/// ConstantSInt - Signed Integer Values [sbyte, short, int, long]
|
|
///
|
|
class ConstantSInt : public ConstantInt {
|
|
ConstantSInt(const ConstantSInt &); // DO NOT IMPLEMENT
|
|
friend struct ConstantCreator<ConstantSInt, Type, int64_t>;
|
|
|
|
protected:
|
|
ConstantSInt(const Type *Ty, int64_t V);
|
|
public:
|
|
/// get() - Static factory methods - Return objects of the specified value
|
|
///
|
|
static ConstantSInt *get(const Type *Ty, int64_t V);
|
|
|
|
/// isValueValidForType - return true if Ty is big enough to represent V.
|
|
///
|
|
static bool isValueValidForType(const Type *Ty, int64_t V);
|
|
|
|
/// getValue - return the underlying value of this constant.
|
|
///
|
|
inline int64_t getValue() const { return Val.Signed; }
|
|
|
|
virtual bool isAllOnesValue() const { return getValue() == -1; }
|
|
|
|
/// isMaxValue - Return true if this is the largest value that may be
|
|
/// represented by this type.
|
|
///
|
|
virtual bool isMaxValue() const {
|
|
int64_t V = getValue();
|
|
if (V < 0) return false; // Be careful about wrap-around on 'long's
|
|
++V;
|
|
return !isValueValidForType(getType(), V) || V < 0;
|
|
}
|
|
|
|
/// isMinValue - Return true if this is the smallest value that may be
|
|
/// represented by this type.
|
|
///
|
|
virtual bool isMinValue() const {
|
|
int64_t V = getValue();
|
|
if (V > 0) return false; // Be careful about wrap-around on 'long's
|
|
--V;
|
|
return !isValueValidForType(getType(), V) || V > 0;
|
|
}
|
|
|
|
/// Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
///
|
|
static inline bool classof(const ConstantSInt *) { return true; }
|
|
static bool classof(const Constant *CPV); // defined in Constants.cpp
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Constant>(V) && classof(cast<Constant>(V));
|
|
}
|
|
};
|
|
|
|
//===---------------------------------------------------------------------------
|
|
/// ConstantUInt - Unsigned Integer Values [ubyte, ushort, uint, ulong]
|
|
///
|
|
class ConstantUInt : public ConstantInt {
|
|
ConstantUInt(const ConstantUInt &); // DO NOT IMPLEMENT
|
|
friend struct ConstantCreator<ConstantUInt, Type, uint64_t>;
|
|
protected:
|
|
ConstantUInt(const Type *Ty, uint64_t V);
|
|
public:
|
|
/// get() - Static factory methods - Return objects of the specified value
|
|
///
|
|
static ConstantUInt *get(const Type *Ty, uint64_t V);
|
|
|
|
/// isValueValidForType - return true if Ty is big enough to represent V.
|
|
///
|
|
static bool isValueValidForType(const Type *Ty, uint64_t V);
|
|
|
|
/// getValue - return the underlying value of this constant.
|
|
///
|
|
inline uint64_t getValue() const { return Val.Unsigned; }
|
|
|
|
/// isMaxValue - Return true if this is the largest value that may be
|
|
/// represented by this type.
|
|
///
|
|
virtual bool isAllOnesValue() const;
|
|
virtual bool isMaxValue() const { return isAllOnesValue(); }
|
|
virtual bool isMinValue() const { return getValue() == 0; }
|
|
|
|
/// Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
static inline bool classof(const ConstantUInt *) { return true; }
|
|
static bool classof(const Constant *CPV); // defined in Constants.cpp
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Constant>(V) && classof(cast<Constant>(V));
|
|
}
|
|
};
|
|
|
|
|
|
//===---------------------------------------------------------------------------
|
|
/// ConstantFP - Floating Point Values [float, double]
|
|
///
|
|
class ConstantFP : public Constant {
|
|
double Val;
|
|
friend struct ConstantCreator<ConstantFP, Type, uint64_t>;
|
|
friend struct ConstantCreator<ConstantFP, Type, uint32_t>;
|
|
ConstantFP(const ConstantFP &); // DO NOT IMPLEMENT
|
|
protected:
|
|
ConstantFP(const Type *Ty, double V);
|
|
public:
|
|
/// get() - Static factory methods - Return objects of the specified value
|
|
static ConstantFP *get(const Type *Ty, double V);
|
|
|
|
/// isValueValidForType - return true if Ty is big enough to represent V.
|
|
static bool isValueValidForType(const Type *Ty, double V);
|
|
inline double getValue() const { return Val; }
|
|
|
|
/// isNullValue - Return true if this is the value that would be returned by
|
|
/// getNullValue. Don't depend on == for doubles to tell us it's zero, it
|
|
/// considers -0.0 to be null as well as 0.0. :(
|
|
virtual bool isNullValue() const {
|
|
union {
|
|
double V;
|
|
uint64_t I;
|
|
} T;
|
|
T.V = Val;
|
|
return T.I == 0;
|
|
}
|
|
|
|
/// isExactlyValue - We don't rely on operator== working on double values, as
|
|
/// it returns true for things that are clearly not equal, like -0.0 and 0.0.
|
|
/// As such, this method can be used to do an exact bit-for-bit comparison of
|
|
/// two floating point values.
|
|
bool isExactlyValue(double V) const {
|
|
union {
|
|
double V;
|
|
uint64_t I;
|
|
} T1;
|
|
T1.V = Val;
|
|
union {
|
|
double V;
|
|
uint64_t I;
|
|
} T2;
|
|
T2.V = V;
|
|
return T1.I == T2.I;
|
|
}
|
|
|
|
/// Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
static inline bool classof(const ConstantFP *) { return true; }
|
|
static bool classof(const Constant *CPV); // defined in Constants.cpp
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Constant>(V) && classof(cast<Constant>(V));
|
|
}
|
|
};
|
|
|
|
//===---------------------------------------------------------------------------
|
|
/// ConstantAggregateZero - All zero aggregate value
|
|
///
|
|
class ConstantAggregateZero : public Constant {
|
|
friend struct ConstantCreator<ConstantAggregateZero, Type, char>;
|
|
ConstantAggregateZero(const ConstantAggregateZero &); // DO NOT IMPLEMENT
|
|
protected:
|
|
ConstantAggregateZero(const Type *Ty) : Constant(Ty) {}
|
|
public:
|
|
/// get() - static factory method for creating a null aggregate. It is
|
|
/// illegal to call this method with a non-aggregate type.
|
|
static Constant *get(const Type *Ty);
|
|
|
|
/// isNullValue - Return true if this is the value that would be returned by
|
|
/// getNullValue.
|
|
virtual bool isNullValue() const { return true; }
|
|
|
|
virtual void destroyConstant();
|
|
virtual void replaceUsesOfWithOnConstant(Value *From, Value *To,
|
|
bool DisableChecking = false);
|
|
|
|
/// Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
///
|
|
static inline bool classof(const ConstantAggregateZero *) { return true; }
|
|
static bool classof(const Constant *CPV);
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Constant>(V) && classof(cast<Constant>(V));
|
|
}
|
|
};
|
|
|
|
|
|
//===---------------------------------------------------------------------------
|
|
/// ConstantArray - Constant Array Declarations
|
|
///
|
|
class ConstantArray : public Constant {
|
|
friend struct ConstantCreator<ConstantArray, ArrayType,
|
|
std::vector<Constant*> >;
|
|
ConstantArray(const ConstantArray &); // DO NOT IMPLEMENT
|
|
protected:
|
|
ConstantArray(const ArrayType *T, const std::vector<Constant*> &Val);
|
|
public:
|
|
/// get() - Static factory methods - Return objects of the specified value
|
|
static Constant *get(const ArrayType *T, const std::vector<Constant*> &);
|
|
static Constant *get(const std::string &Initializer);
|
|
|
|
/// getType - Specialize the getType() method to always return an ArrayType,
|
|
/// which reduces the amount of casting needed in parts of the compiler.
|
|
///
|
|
inline const ArrayType *getType() const {
|
|
return reinterpret_cast<const ArrayType*>(Value::getType());
|
|
}
|
|
|
|
/// isString - This method returns true if the array is an array of sbyte or
|
|
/// ubyte, and if the elements of the array are all ConstantInt's.
|
|
bool isString() const;
|
|
|
|
/// getAsString - If this array is isString(), then this method converts the
|
|
/// array to an std::string and returns it. Otherwise, it asserts out.
|
|
///
|
|
std::string getAsString() const;
|
|
|
|
/// getValues - Return a vector of the component constants that make up this
|
|
/// array.
|
|
inline const std::vector<Use> &getValues() const { return Operands; }
|
|
|
|
/// isNullValue - Return true if this is the value that would be returned by
|
|
/// getNullValue. This always returns false because zero arrays are always
|
|
/// created as ConstantAggregateZero objects.
|
|
virtual bool isNullValue() const { return false; }
|
|
|
|
virtual void destroyConstant();
|
|
virtual void replaceUsesOfWithOnConstant(Value *From, Value *To,
|
|
bool DisableChecking = false);
|
|
|
|
/// Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
static inline bool classof(const ConstantArray *) { return true; }
|
|
static bool classof(const Constant *CPV); // defined in Constants.cpp
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Constant>(V) && classof(cast<Constant>(V));
|
|
}
|
|
};
|
|
|
|
|
|
//===---------------------------------------------------------------------------
|
|
// ConstantStruct - Constant Struct Declarations
|
|
//
|
|
class ConstantStruct : public Constant {
|
|
friend struct ConstantCreator<ConstantStruct, StructType,
|
|
std::vector<Constant*> >;
|
|
ConstantStruct(const ConstantStruct &); // DO NOT IMPLEMENT
|
|
protected:
|
|
ConstantStruct(const StructType *T, const std::vector<Constant*> &Val);
|
|
public:
|
|
/// get() - Static factory methods - Return objects of the specified value
|
|
static Constant *get(const StructType *T, const std::vector<Constant*> &V);
|
|
|
|
/// getType() specialization - Reduce amount of casting...
|
|
inline const StructType *getType() const {
|
|
return reinterpret_cast<const StructType*>(Value::getType());
|
|
}
|
|
|
|
/// getValues - Return a vector of the component constants that make up this
|
|
/// structure.
|
|
inline const std::vector<Use> &getValues() const { return Operands; }
|
|
|
|
/// isNullValue - Return true if this is the value that would be returned by
|
|
/// getNullValue. This always returns false because zero structs are always
|
|
/// created as ConstantAggregateZero objects.
|
|
virtual bool isNullValue() const {
|
|
return false;
|
|
}
|
|
|
|
virtual void destroyConstant();
|
|
virtual void replaceUsesOfWithOnConstant(Value *From, Value *To,
|
|
bool DisableChecking = false);
|
|
|
|
/// Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
static inline bool classof(const ConstantStruct *) { return true; }
|
|
static bool classof(const Constant *CPV); // defined in Constants.cpp
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Constant>(V) && classof(cast<Constant>(V));
|
|
}
|
|
};
|
|
|
|
//===---------------------------------------------------------------------------
|
|
/// ConstantPointerNull - a constant pointer value that points to null
|
|
///
|
|
class ConstantPointerNull : public Constant {
|
|
friend struct ConstantCreator<ConstantPointerNull, PointerType, char>;
|
|
ConstantPointerNull(const ConstantPointerNull &); // DO NOT IMPLEMENT
|
|
protected:
|
|
ConstantPointerNull(const PointerType *T)
|
|
: Constant(reinterpret_cast<const Type*>(T)) {}
|
|
|
|
public:
|
|
|
|
/// get() - Static factory methods - Return objects of the specified value
|
|
static ConstantPointerNull *get(const PointerType *T);
|
|
|
|
/// isNullValue - Return true if this is the value that would be returned by
|
|
/// getNullValue.
|
|
virtual bool isNullValue() const { return true; }
|
|
|
|
virtual void destroyConstant();
|
|
|
|
/// Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
static inline bool classof(const ConstantPointerNull *) { return true; }
|
|
static bool classof(const Constant *CPV);
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Constant>(V) && classof(cast<Constant>(V));
|
|
}
|
|
};
|
|
|
|
|
|
//===---------------------------------------------------------------------------
|
|
/// ConstantPointerRef - a constant pointer value that is initialized to
|
|
/// point to a global value, which lies at a constant, fixed address.
|
|
///
|
|
class ConstantPointerRef : public Constant {
|
|
friend class Module; // Modules maintain these references
|
|
ConstantPointerRef(const ConstantPointerRef &); // DNI!
|
|
|
|
protected:
|
|
ConstantPointerRef(GlobalValue *GV);
|
|
public:
|
|
/// get() - Static factory methods - Return objects of the specified value
|
|
static ConstantPointerRef *get(GlobalValue *GV);
|
|
|
|
const GlobalValue *getValue() const {
|
|
return cast<GlobalValue>(Operands[0].get());
|
|
}
|
|
|
|
GlobalValue *getValue() {
|
|
return cast<GlobalValue>(Operands[0].get());
|
|
}
|
|
|
|
/// isNullValue - Return true if this is the value that would be returned by
|
|
/// getNullValue.
|
|
virtual bool isNullValue() const { return false; }
|
|
|
|
virtual void destroyConstant();
|
|
virtual void replaceUsesOfWithOnConstant(Value *From, Value *To,
|
|
bool DisableChecking = false);
|
|
|
|
/// Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
static inline bool classof(const ConstantPointerRef *) { return true; }
|
|
static bool classof(const Constant *CPV);
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Constant>(V) && classof(cast<Constant>(V));
|
|
}
|
|
};
|
|
|
|
// ConstantExpr - a constant value that is initialized with an expression using
|
|
// other constant values. This is only used to represent values that cannot be
|
|
// evaluated at compile-time (e.g., something derived from an address) because
|
|
// it does not have a mechanism to store the actual value. Use the appropriate
|
|
// Constant subclass above for known constants.
|
|
//
|
|
class ConstantExpr : public Constant {
|
|
unsigned iType; // Operation type (an Instruction opcode)
|
|
friend struct ConstantCreator<ConstantExpr,Type,
|
|
std::pair<unsigned, std::vector<Constant*> > >;
|
|
friend struct ConvertConstantType<ConstantExpr, Type>;
|
|
|
|
protected:
|
|
// Cast creation ctor
|
|
ConstantExpr(unsigned Opcode, Constant *C, const Type *Ty);
|
|
// Binary/Shift instruction creation ctor
|
|
ConstantExpr(unsigned Opcode, Constant *C1, Constant *C2);
|
|
// Select instruction creation ctor
|
|
ConstantExpr(Constant *C, Constant *V1, Constant *V2);
|
|
// GEP instruction creation ctor
|
|
ConstantExpr(Constant *C, const std::vector<Constant*> &IdxList,
|
|
const Type *DestTy);
|
|
|
|
// These private methods are used by the type resolution code to create
|
|
// ConstantExprs in intermediate forms.
|
|
static Constant *getTy(const Type *Ty, unsigned Opcode,
|
|
Constant *C1, Constant *C2);
|
|
static Constant *getShiftTy(const Type *Ty,
|
|
unsigned Opcode, Constant *C1, Constant *C2);
|
|
static Constant *getSelectTy(const Type *Ty,
|
|
Constant *C1, Constant *C2, Constant *C3);
|
|
static Constant *getGetElementPtrTy(const Type *Ty, Constant *C,
|
|
const std::vector<Constant*> &IdxList);
|
|
|
|
public:
|
|
// Static methods to construct a ConstantExpr of different kinds. Note that
|
|
// these methods may return a object that is not an instance of the
|
|
// ConstantExpr class, because they will attempt to fold the constant
|
|
// expression into something simpler if possible.
|
|
|
|
/// Cast constant expr
|
|
///
|
|
static Constant *getCast(Constant *C, const Type *Ty);
|
|
static Constant *getSignExtend(Constant *C, const Type *Ty);
|
|
static Constant *getZeroExtend(Constant *C, const Type *Ty);
|
|
|
|
/// Select constant expr
|
|
///
|
|
static Constant *getSelect(Constant *C, Constant *V1, Constant *V2) {
|
|
return getSelectTy(V1->getType(), C, V1, V2);
|
|
}
|
|
|
|
|
|
/// ConstantExpr::get - Return a binary or shift operator constant expression,
|
|
/// folding if possible.
|
|
///
|
|
static Constant *get(unsigned Opcode, Constant *C1, Constant *C2) {
|
|
return getTy(C1->getType(), Opcode, C1, C2);
|
|
}
|
|
|
|
/// ConstantExpr::get* - Return some common constants without having to
|
|
/// specify the full Instruction::OPCODE identifier.
|
|
///
|
|
static Constant *getNeg(Constant *C);
|
|
static Constant *getNot(Constant *C);
|
|
static Constant *getAdd(Constant *C1, Constant *C2);
|
|
static Constant *getSub(Constant *C1, Constant *C2);
|
|
static Constant *getMul(Constant *C1, Constant *C2);
|
|
static Constant *getDiv(Constant *C1, Constant *C2);
|
|
static Constant *getRem(Constant *C1, Constant *C2);
|
|
static Constant *getAnd(Constant *C1, Constant *C2);
|
|
static Constant *getOr(Constant *C1, Constant *C2);
|
|
static Constant *getXor(Constant *C1, Constant *C2);
|
|
static Constant *getSetEQ(Constant *C1, Constant *C2);
|
|
static Constant *getSetNE(Constant *C1, Constant *C2);
|
|
static Constant *getSetLT(Constant *C1, Constant *C2);
|
|
static Constant *getSetGT(Constant *C1, Constant *C2);
|
|
static Constant *getSetLE(Constant *C1, Constant *C2);
|
|
static Constant *getSetGE(Constant *C1, Constant *C2);
|
|
static Constant *getShl(Constant *C1, Constant *C2);
|
|
static Constant *getShr(Constant *C1, Constant *C2);
|
|
|
|
static Constant *getUShr(Constant *C1, Constant *C2); // unsigned shr
|
|
static Constant *getSShr(Constant *C1, Constant *C2); // signed shr
|
|
|
|
/// Getelementptr form...
|
|
///
|
|
static Constant *getGetElementPtr(Constant *C,
|
|
const std::vector<Constant*> &IdxList);
|
|
|
|
/// isNullValue - Return true if this is the value that would be returned by
|
|
/// getNullValue.
|
|
virtual bool isNullValue() const { return false; }
|
|
|
|
/// getOpcode - Return the opcode at the root of this constant expression
|
|
unsigned getOpcode() const { return iType; }
|
|
|
|
/// getOpcodeName - Return a string representation for an opcode.
|
|
const char *getOpcodeName() const;
|
|
|
|
/// isConstantExpr - Return true if this is a ConstantExpr
|
|
virtual bool isConstantExpr() const { return true; }
|
|
|
|
virtual void destroyConstant();
|
|
virtual void replaceUsesOfWithOnConstant(Value *From, Value *To,
|
|
bool DisableChecking = false);
|
|
|
|
/// Override methods to provide more type information...
|
|
inline Constant *getOperand(unsigned i) {
|
|
return cast<Constant>(User::getOperand(i));
|
|
}
|
|
inline Constant *getOperand(unsigned i) const {
|
|
return const_cast<Constant*>(cast<Constant>(User::getOperand(i)));
|
|
}
|
|
|
|
|
|
/// Methods for support type inquiry through isa, cast, and dyn_cast:
|
|
static inline bool classof(const ConstantExpr *) { return true; }
|
|
static inline bool classof(const Constant *CPV) {
|
|
return CPV->isConstantExpr();
|
|
}
|
|
static inline bool classof(const Value *V) {
|
|
return isa<Constant>(V) && classof(cast<Constant>(V));
|
|
}
|
|
};
|
|
|
|
} // End llvm namespace
|
|
|
|
#endif
|